Water-heater.



H.BULLAR D.

WATER HEATER.

APPLICATION FILED APR-13. 19x8.

1,295,687. Patented Feb. 25, 1919.

HARRY BULLARD, or ossIAN, 10m.

WATER-HEATER.

Specification-10f Letters latent. Patentd Feb. 25, 1919.

Application filed apriflsjiolsr' Serial No. 228,497.

To all whom it may concern:

Be it known that I, HARRY BULLARD, a c1t1- zen of the United States, residing at Ossian,

in the county of Winneshiek and State of Iowa, have invented new and useful Improvements in Water-Heaters, of which the following is a specification.

This invention is an improved water heater, especially adapted for use in connection with a water reservoir tank and its stand pipe to prevent freezing of the water therein, the object of the invention being to provide an improved water heater of'this class which is simple in construction, which can be readily and easily installed, and which with a minimum consumption offuel is entirely effective to prevent water from freezing in a reservoir tank and in the stand pipe thereof.

With the above and other objects in view the invention consists in the construction, combination and arrangement of devices hereinafter described and claimed.

The accompanying drawing is a vertical sectional view of a water heater constructed and arranged in accordance with my invention, and showing the same in connection with a reservoir tank and its stand pipe.

For the purposes of this specification a reservoir tank is indicated at 1, and the stand pipe of the reservoir tank is indicated at 2.

In accordance with my invention I provide a pipe 3 which is of much less diameter than the stand pipe and which has its upper portion arranged in the stand pipe and extending downwardly therethrough nearly to the ground, the upper end of the pipe 3 opening into the tank as shown.

The said pipe 3 extends through one side of the stand pipe, at a point near the ground, as at 4 and is formed with a coil 5. he opposite end of the pipe 3 extends from the coil as at 6 and is connected directly to the stand pipe as at 7 and constitutes a flow connection from the stand pipe, the upper portion of the pipe 3 which extends from the coil constituting the return connection to the tank.

The coil 5 is arranged in a suitable firebox or furnace 8 and is adapted to be heated therein as will be understood.

Cold water from the stand pipe passes through the connection 6 into the coil, is

heated in the coil, and returns therefrom through the upper portion of the pipe 3 directly into the lower portion of the tank. The heat of the pipe 3 prevents water from freezing in the stand pipe, in cold weather, and the direct supply of warm or highly heated water from the pipe 3 into the water in the tank, prevents freezing in the tank, so that both the tank and its stand pipe are efiectually prevented from freezing.

I also provide a steam pipe 9 which is connected as at 10 to the pipe 3 and extends up through the stand pipe and also up into the tank to a point above the water level in the tank. The upper end of this steam pipe is open. Said steam pipe has a cut-0E valve 11 near its lower end and the pipe 3 also has a cut-off valve 12. In the event that through neglect water should freeze in the stand pipe or the tank, the valve 11 can be opened so as to cause steam from the coil 5 to pass up through the pipes 9 and escape into the top of the tank and thaw the ice in the stand pipe and in the tank, as will be understood.

While I have herein shown and described a preferred form of my invention I would have it understood that changes may be made in the form, proportion and construction of the several parts without departing from the spirit of my invention and within the scope of the appended claims.

Having thus described my invention, I claim:

1. In combination with a reservoir tank and a stand pipe extending downwardly therefrom, a water heating coil, a heater in which said coil is arranged, a cold water pipe extending directly from the stand pipe into one end of said coil, a pipe leading from the opposite end of said coil into and extending upwardly through the stand pipe and conimunicatingnat .its wupperrend,directly stand pipe and also through thehtankvto a with theintericrnfthe:tank' ati a-point be-r point'above-the Water line in the tank and low the water line therein to supply heated open at its upper end and thereby arranged 10 Water directly to the tank, said plpe having to discharge steam directly into the upper a cut-0fi" valve and a steam pipe also con end 0f-the-tan'k.-

nected to said pipe, provided With a cut-off In testimony whereof I affix my signature. valve and extending'upwardly throughthe HARRY BULLARD.

Copies of this patent may ,be .ohtained torfiv'ecents each, by addressing the Commissioner of :Iatentg T Washington, D. 0.. 

